CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock Including Additional Paid in Capital	Retained Earnings	Cumulative Foreign Currency Translation Adjustments	Retirement Benefits	Unrealized Gain Loss On Derivatives	Treasury Stock
Balance at Dec. 31, 2011	$ 1,513,135	$ 490,988	$ 1,142,412	$ 24,194	$ (38,486)	$ (41,177)	$ (64,796)
Net income	106,522		106,522
Other comprehensive income, net of tax:
Cumulative translation adjustment	(11,700)			(11,700)
Pension and other postretirement adjustments, net of tax	3,088				3,088
Amortization of forward starting swaps, net of tax	2,440					2,440
Issuance of 1,142,685 shares of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans, net of tax benefit	30,346	30,346
Repurchase of 865,151 shares of common stock	(36,042)						(36,042)
Unvested shares surrendered for tax withholding	(2,265)						(2,265)
Share-based compensation	7,147	7,147
Cash dividends declared - $.40 per common share	(33,418)		(33,418)
Balance at Jun. 30, 2012	$ 1,579,253	$ 528,481	$ 1,215,516	$ 12,494	$ (35,398)	$ (38,737)	$ (103,103)